Real Dictionary

abandon
verb: If you abandon a place, thing, or person, you leave the place, thing, or person permanently or for a long time, especially when you should not do so.
verb: If you abandon an activity or piece of work, you stop doing it before it is finished.
verb: If you abandon an idea or way of thinking, you stop having that idea or thinking in that way.

abandon in American English
to give up (something) completely or forever

abandon in American English 1
transitive verb: to leave completely and finally; forsake utterly; desert

abandon in American English 2
noun: a complete surrender to natural impulses without restraint or moderation; freedom from inhibition or conventionality

abandon in British English
to forsake completely; desert; leave behind
noun: freedom from inhibitions, restraint, concern, or worry

abandon in Insurance
verb: If you abandon insured property that has suffered partial loss or damage, you give it to the insurers so that a claim for a total loss may be made.